Cutting is very easy as has been noted but please keep in mind that CF is similar to fiberglass in that you need to handle it very carefully.
You don't want to get a tiny sliver, splinter or strand lodged into any skin, or more importantly your eyes.
Please wear protective goggles when cutting sanding grinding this great stuff!!!
As long as you never have a problem, CF seems really like no big deal. Like seatbelts, many people just don't bother but let that one awkward moment happen and you will be a believer the rest of your life.
CF, as has been pointed out, comes in a huge variety of widths, lengths, thickness and of course shapes, both solid, and hollow. It is in your best interest to buy the closest possible size and shape in order to keep cutting, sanding or grinding to a bare minimum. This in itself will be your best protection.
Robert